Prefix Information

The prefix 304 is part of area code 712 serving Sioux City, Iowa.

This exchange contains 10,000 possible phone numbers (712-304-0000 through 712-304-9999).

Browse Numbers in This Prefix

712-304-0000-0999 712-304-1000-1999 712-304-2000-2999 712-304-3000-3999 712-304-4000-4999 712-304-5000-5999 712-304-6000-6999 712-304-7000-7999 712-304-8000-8999 712-304-9000-9999

Sample Numbers

(712) 304-0000 (712) 304-1234 (712) 304-2000 (712) 304-3333 (712) 304-4444 (712) 304-5555 (712) 304-6000 (712) 304-7777 (712) 304-8888 (712) 304-9999